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Article #103Re: is third transformer hole an earth?
From: Peter Hucker
Date: Tue, 11 Nov 2008 17:33
Date: Tue, 11 Nov 2008 17:33
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On Tue, 11 Nov 2008 02:46:18 -0000, Paul Hovnanian P.E. <paul@hovnanian.com> wrote: > Peter Hucker wrote: >> >> On Sun, 09 Nov 2008 16:51:43 -0000, lars <lars@testbox.tld> wrote: >> >> > Peter Hucker: >> > >> >> Power bricks are plastic and don't need to be earthed for safety reasons. >> >> His question, which nobody has answered yet, >> >> is whether the supply NEEDS an earth to operate correctly. >> > >> > The answer is no. >> >> Then I wonder what it's connected to? The plastic chassis? What good does that do? > > Internal surge supression/EMC circuitry. Ah, required to pass the tests to be able to sell it, but of no concern to the end user. -- http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com A woman goes into a sporting goods store to buy a shotgun. "It's for my husband," she tells the clerk. "Did he tell you what gauge to get?" asked the clerk. "Are you kidding?" she says. "He doesn't even know that I'm going to shoot him!"
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X-Google-Thread: 1131b0,8ae7935e94fea1ee X-Google-Thread: faa3c,8ae7935e94fea1ee X-Google-Attributes: gid1131b0,gidfaa3c,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: arc1-ca.pugleaf.net!g2news2.google.com!news1.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!news.alt.net From: "Peter Hucker" <none@spam.com> Newsgroups: sci.electronics.repair,24hoursupport.helpdesk Subject: Re: is third transformer hole an earth? Date: Tue, 11 Nov 2008 17:33:17 -0000 Organization: Altopia Corp. - Usenet Access - www.altopia.com Lines: 27 Message-ID: <op.ukgtpryh4buhsv@fx62.mshome.net> References: <gf43nr$fiv$1@registered.motzarella.org> <slrnghbb69.bnl.catwheezel@ID-107770.user.individual.net> <op.ukbarfpm4buhsv@fx62.mshome.net> <4917151f$0$2765$ec0b6b8d@reader01> <op.uke0r5u04buhsv@fx62.mshome.net> <4918F1FA.9AF76946@hovnanian.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Transfer-Encoding: 7bit User-Agent: Opera Mail/9.27 (Win32)